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/dev/watchdog を不適切に閉じた結果、”watchdog did not stop!” メッセージの表示およびシステムクラッシュを引き起こすプロセスを特定する方法

Solution Verified - Updated -

Issue

  • /dev/watchdog を不適切に閉じた結果、”watchdog did not stop!” メッセージの表示およびシステムクラッシュを引き起こすプロセスを特定するにはどうすればよいですか?
kernel: watchdog: watchdog0: watchdog did not stop!
kernel: watchdog: watchdog0: watchdog did not stop!
  • grep -R "No valid host was found" / を実行すると、次のメッセージが表示されてシステムがリセットされるのはなぜですか?
"The watchdog timer reset the system" (iDRAC) 

UEFI0082: The system was reset due to a timeout from the watchdog timer. 
Check the System Event Log (SEL) or crash dumps from Operating Sysstem to 
identify the source that triggered the watchdog timer reset. Update the
firmware or driver for the identified device.

watchdog_timer_idrac

Environment

  • RHEL
  • Dell サーバー

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